21710664

素因数分解:

$2^3\times 3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 62000640

約数和(自身を除く): 40289976

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 31, 36, 62, 71, 72, 93, 124, 137, 142, 186, 213, 248, 274, 279, 284, 372, 411, 426, 548, 558, 568, 639, 744, 822, 852, 1096, 1116, 1233, 1278, 1644, 1704, 2201, 2232, 2466, 2556, 3288, 4247, 4402, 4932, 5112, 6603, 8494, 8804, 9727, 9864, 12741, 13206, 16988, 17608, 19454, 19809, 25482, 26412, 29181, 33976, 38223, 38908, 39618, 50964, 52824, 58362, 76446, 77816, 79236, 87543, 101928, 116724, 152892, 158472, 175086, 233448, 301537, 305784, 350172, 603074, 700344, 904611, 1206148, 1809222, 2412296, 2713833, 3618444, 5427666, 7236888, 10855332, 21710664]

約数ペア:

[(1, 21710664), (2, 10855332), (3, 7236888), (4, 5427666), (6, 3618444), (8, 2713833), (9, 2412296), (12, 1809222), (18, 1206148), (24, 904611), (31, 700344), (36, 603074), (62, 350172), (71, 305784), (72, 301537), (93, 233448), (124, 175086), (137, 158472), (142, 152892), (186, 116724), (213, 101928), (248, 87543), (274, 79236), (279, 77816), (284, 76446), (372, 58362), (411, 52824), (426, 50964), (548, 39618), (558, 38908), (568, 38223), (639, 33976), (744, 29181), (822, 26412), (852, 25482), (1096, 19809), (1116, 19454), (1233, 17608), (1278, 16988), (1644, 13206), (1704, 12741), (2201, 9864), (2232, 9727), (2466, 8804), (2556, 8494), (3288, 6603), (4247, 5112), (4402, 4932)]